Suspension by regular and groupy waves over bedforms in a large wave flume (SISTEX99)

C.E. Vincent, D.M Hanes, C.M. Dohmen-Janssen, G. Klopman, S.R. Mclean, C. Obhrai, J.S. Ribberink

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    4 Citations (Scopus)
    53 Downloads (Pure)

    Abstract

    Suspended sand concentrations and bedforms under waves were measured in the controlled environment of a large wave flume. Three suspension conditions are discussed here; those occurring with regular (monochromatic) waves of height 0.55m over anorbital ripples, regular waves 1.0m high over orbital bedforms, and repeating wave groups (with a significant wave height of 0.6m) also over orbital-scale features. In all cases the wave-to-wave variability in suspended load was high (∼30%). Patterns of suspension were dependent on the bedform type and on instrument location relative to the bedform. Regular waves suspended an order of magnitude more sediment than groupy waves with a similar significant wave height illustrating,the importance of sequences of high waves in pumping-up sediment concentration into the water column.
    Original languageEnglish
    Title of host publicationCoastal Dynamics '01
    Subtitle of host publicationProceedings of the Fourth Conference on Coastal Dynamics
    EditorsHans Hanson, Magnus Larson
    PublisherAmerican Society of Civil Engineers
    Pages303-312
    Number of pages10
    ISBN (Print)9780784405666
    DOIs
    Publication statusPublished - 11 Jun 2001
    Event4th ASCE Conference on Coastal Dynamics 2001 - Lund, Sweden
    Duration: 11 Jun 200115 Jun 2001

    Conference

    Conference4th ASCE Conference on Coastal Dynamics 2001
    Abbreviated titleCoastal Dynamics 2001
    CountrySweden
    CityLund
    Period11/06/0115/06/01

    Keywords

    • METIS-125194

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